This thread made me finally open my Ami Professional box I got off trademe a while back (the first WYSIWYG word processor for Windows) - inside the box, next to the original manuals and disks were a few other DOS software titles - including PFS First Choice 1.0 (1986) disks with a $100 price tag on it Quite happy about that.

Edit: tried them out, seems the old version runs straight off floppy, used it on my 5150 (256KB + MDA) with great success. I need to switch out my data disk for the dictionary disk when starting or doing a spelling check though This and "Accounts 3" both ran on a twin floppy setup.